......................................................
   
 

AS PER API STANDARD
   

RECONDITIONING OF METTALIC GATE, GLOBE, CHECK, BUTTERFLY, BALL, CONTROL AND SAFETY

VALVES.

STANDARD
 
 

This is prepared with reference to the following standard pertaining to the industrial valves and fittings for the Petroleum, Petrochemical, Power Plant, Fertilizer, Sugar plant, Paper, Chemical, Steel and Allied Industries.
 
1
 API  598 : Specifications for Testing &Inspection of Valves and Fittings.
2
 API  600 : Specifications for Steel Gate Flanges and But Weld ends.
3
 API  602 : Specifications for compact (forged) Carbon Steel Gate valves with Socket Weld and Screwed    
ends.
4
 BS 5352 : Specification for Forge Steel Globe and Non Return Valves with  socket weld and screwed
ends.
5
 BS 1873 : Specifications for Globe Stop Valves Flanged and Butt Weld ends.
6
 BS 1868 : Specifications for Check Valves with Flanged ends.
7
 BS 5351 : Specifications for Steel Ball Valves.
8
 BS 5353 : Specifications for Plug Valves with Socket weld and Screwed end  and flanged end.
9
 BS 5155 : Specifications for Butterfly Valves.
10
 BS 5156 : Specifications for Diaphragm Valves.
11
 BS 6765 : Specifications for Testing and Inspection of Valves.
12
 BS 5146-1974 : Inspection and Testing of Valves.
13
 BS 5150-1974 : Specifications for CI general purpose Gate Valves.
14
 BS 5151-1983 : Specifications for CI parallel Slide Gate Valves.
15
 BS 5152-1983 : Specifications for CI Globe Stop Valves and Check Valves.
16
 BS 5153-1974 : Specifications for CI Check Valves.
17
 BS 5157-1974 : Specifications for Steel Gate Valves.
18
 BS 5157-1974 : Specifications for CI Carbon Steel Ball Valves.
19
 VS 5160-1977 : Specifications for Lift type Check Valves and Globe Valves.
20
 BS 5840-1980 : Specifications for Valves Mating details with actuator.
21
 BS 6364-1984 : Specifications of Valves for cryogenic service.
22
 BS 6683-1985 : Guide to Installation and Use of Valves.
23
 BS 6755          : Part I and Part II : Testing of Valves.
24
 IS: 10189        : Specifications for General Purpose of Control Valves.
25
 ANSI B16 104 : Specifications for Control Valves Seat Leakage.
26
 MSS-SP 81      : Specifications for Knife Edge Gate Valves.
27
 MS-SP 55        : Specifications for Quality of Steel Casting.
 
   
   
 

HP VALVES servicing range includes, in general, the following:

Major Group:
  Closing Down Valves
:
 Globe, Piston Needle and Diaphram Valves.
  Slice Valves
:
 Gate, Pulp and Sluice Valves
  Rotary Valves
:
 Ball , Plug and Butterfly Valves
  Non-Return Valves
:
 Swing Check and Lift Check Valves
  Safety Valves
:
Pressure Relief, Pressure Reducing and
      cryogenic  Valves Instrumentation &Control
      Valves along with actuated.

 
Types and Designs:
Types and Designs:
 
  Gate Valves
:
 Solid Wedge, Split Wedge, Double Disc, Flexible
   
Wedge  Soft Seal, Metal Seated, Parallel slide.
  Globe Valves 
:
 Straight, Angle and Y  type ,Bellow seated
  Plug Valves 
:
 PTFE Sleeved, Lubricated Stem
  Ball Valves 
:
Full Port and Regular Port, Fire Safe and
      multipotred
  Butterfly Valves
:
 Wafer type, Double Flanged, Sleeved, Metal To
      Metal seated
  Diaphragm Valves
:
 Weir/Full Port with Rubber Lining
  Safety Valves
:
 Straight /Below
       
Control valves fitted with mechanical, electrical and pneumatic Linear/Rotary Actuators are also undertaken for HP services
 
REPAIRS RETROFIT:
 
Disassembly, inspection, evolution of complete valve, actuator. Cleaning of valve parts and its suitability
for further use or its replacement or modification to upgrade the performance.
Skin machining on plug and seat contact, lapping , Blue matching and establishing perfect seating
contact.
Reconditioning of plug, seat, cage by depositing tough metal / stelliting hard facing. If so warranted.
Replacement of gland packing, gaskets and seal rings. Welding and Remachining (If required in seating
area).Before assembling the inspect the material quality.
Re-assembly of valve body, mounting of actuators, travel checking, actuators bench set checking etc.
Hydrostatic and seat leakage Test and inspection of valves w.r.t prevailing latest standards.
(ANSIB16-104)
Functional Test on gland, joint and final calibration with valve positioner.
Scrutinizing cause of valve failure and providing client with expert recommendation for eliminating the
cause / reoccurrence
Preparation and submission of Test Certificates.
 
Overhaul & Refurbishment
 

HP VALVES OFFERING SERVICES.
 

Repairs to Gate, Globe, Check, Control, Trip throttle, Extraction check, Regulating, Ball, Butterfly,

  Safety, etc.
 

Refurbishment of Control valve internal trim parts with great savings as opposed to new. Turnkey

  projects
 

include valve removals, re-installs, piping, code and non code.

 

Repairs/new installations.
 

New valve sales and service.
 

National Board code stamps for code boundary welding.
 

Hydrostatic testing: liquid to 10,000 p.s.i. steam to 1500 p.s.i. and air to 1800 p.s.i.
 

Trim changes, material upgrades, seats, disc, stem, etc.

 

Bypass valves and drain installations shop or field.

  Hard facing qualifications to A.S.M.E. section 1X.
 

Weld end prep weld buildup and machining for code or non code applications in the shop or field.

 

Flange surface repairs at our shop or in the field.

 

Factory trained technicians for M.O.V. Repairs.

 

Heat treating services for manufacture/repair work.

  Mobile machine shop (self powered) for outage work.
  Walkthrough outage inspections.
  N.D.E. services available.
  Compliance with customer safety program.
  Packing removal and repacking program using Marlo premium grade packing materials for improved
  service life.
  Free pick up and delivery service
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

PARTS REPLACEMENTS:
 

HP VALVES in depth knowledge in the field of valve and actuator design provides ability to supply compatible spare parts for wide range of valves.

 With minimum of information or by examination of damaged parts, HP is able to supply the parts of equal quality to those provided by original suppliers, often at comparatively lower cost and with quicker delivery.

This sort of service has proved to be of great interest to many major valve using companies as a means to obsolete parts. All parts are provided with full certification and manufactured to QA/QC standards and are covered by a full guarantee. On many occasion after carefully inspecting the damaged part, alternative materials or design modification are suggested to enhance the valve

performance.HP VALVES also supply and fix the accessories like Valve Positioner, I/P Converter, Air Filter Pressure Regulator, volume Booster, Limit switches, Air Lock Relay, Proximity Switches, Handwheel Units (TMH/ SMH) etc.
 

INSITU  SERVICE:
 

HP VALVES has a team of experienced field engineers/technocrats able to carryout either the entire valve/actuator/service requirement or provide the necessary support for your plant maintenance engineers on major/minor shutdown. A portable mobile facility for overhauling, skin machining, testing, re-calibration and valve instrumentation activities

To carry out the shut down within time frame is available and can be provided where necessary. HP VALVES technicians/engineering staff are highly trained and widely experienced to face challenge of present day process control situation. After execution of shutdown activities our skeleton team of highly skilled technocrats remains at the site till commissioning of plant.
 

UPGRADATION ACTIVITIES: Modification & Conversion (IF REQUIRED) :
 

Due to change in operating process parameters, fire or explosion hazards, updating of plant instrumentation, it is often necessary to convert valve from existing type to another type. Protrol has design skill, material, staff & experience to confidently undertake work modification and conversion like-
 
  Change of Cv value
  Change in flow Characteristics.
  Change of valve action from air to open / close or vice a versa .
  Change of MOC of trim set from one metal to another.
  Conversion of pressure balanced trim to unbalanced trim or vice a versa.
  Conversion of manual valve to pneumatic / electrically operated .
  Conversion of on-off valve to control duty valve.
  Change of actuators to meet the warranted P conditions. Change in Leakage Class.
 

 

TESTING OF VALVES:
 
HP VALVES a well known valve servicing division is fully equipped with all the modern valve testing facilities. The thorough testing of control valve is crucial, if the valve is to be expected to operate reliably & maintain its designed characteristics for long periods under actual operating conditions. Hydrostatic test is carried out on all valves to ensure that it means the testing requirements against its primary pressure and temperature rating

In addition to this, seat leakage and gland leakage testing is carried out to ensure satisfactory operation with necessary adjustments, wherever so warranted. When test is satisfactorily completed a test ertificate is issued.
 

Finally, after testing, each valve is painted with modern, high corrosion resistance paint, specific shade for specific application as per customer's request.
 

Visitors are welcomed to inspect the facilities and to personally witness tests taking place.
 
 
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